白丝美女被狂躁免费视频网站,500av导航大全精品,yw.193.cnc爆乳尤物未满,97se亚洲综合色区,аⅴ天堂中文在线网官网

Charging device having small loop transmission coils for wireless charging a target device

專利號
US10097031B2
公開日期
2018-10-09
申請人
Hong Kong Applied Science and Technology Research Institute Company Limited（HK Shatin）
發(fā)明人
Yan Liu; Jun Chen
IPC分類
H02J7/00; H02J7/02
技術(shù)領(lǐng)域
coil,coils,antenna,loop,charging,small,primary,in,wireless,pair
地域： Hong Kong

摘要

A charging device to wirelessly charge a target device, including: a coil antenna having a first surface facing a first direction at which the target device is placed for charging and a second surface facing an opposite direction from the first direction, generating a first magnetic field; a plurality of pairs of metallic small loop transmission coils arranged to the second surface side of the coil antenna, to generate a second magnetic field in response to the first magnetic field to enhance the first magnetic field, the first and second magnetic fields being directed in the first direction; and wherein a first one of each pair of metallic small loop transmission coils is coupled to a second one of the pair in parallel and a size of the first one of each pair is different from that of the second one of the pair, such that when a distance between the target device and the first surface is changed, one of the pair of metallic small loop transmission coils is enabled to be resonant with the coil antenna.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

According to an aspect of the invention, there is provided a charging device to wirelessly charge a target device, comprising: a coil antenna having a first surface facing a first direction at which the target device is placed for charging and a second surface facing an opposite direction from the first direction, the second surface transmitting radio signals; a plurality of pairs of metallic small loop transmission coils arranged to the second surface side of the coil antenna, to reflect the radio signals from the coil antenna toward the outside surface; and wherein a first one of each pair of metallic small loop transmission coils is coupled to a second one of the pair in parallel and a size of the first one of each pair is different from that of the second one of the pair, such that when a distance between the target device and the first surface is changed, one of the pair of metallic small loop transmission coils is enabled to be resonant with the coil antenna.

權(quán)利要求

1
微信群二維碼
意見反饋